gccgo_c.c
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gccgo_c.c
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	// Copyright 2015 The Go Authors. All rights reserved.
	// Use of this source code is governed by a BSD-style
	// license that can be found in the LICENSE file.

	// +build gccgo
	// +build !aix

	#include <errno.h>
	#include <stdint.h>
	#include <unistd.h>

	#define _STRINGIFY2_(x) #x
	#define _STRINGIFY_(x) _STRINGIFY2_(x)
	#define GOSYM_PREFIX _STRINGIFY_(__USER_LABEL_PREFIX__)

	// Call syscall from C code because the gccgo support for calling from
	// Go to C does not support varargs functions.

	struct ret {
	uintptr_t r;
	uintptr_t err;
	};

	struct ret
	gccgoRealSyscall(uintptr_t trap, uintptr_t a1, uintptr_t a2, uintptr_t a3, uintptr_t a4, uintptr_t a5, uintptr_t a6, uintptr_t a7, uintptr_t a8, uintptr_t a9)
	{
	struct ret r;

	errno = 0;
	r.r = syscall(trap, a1, a2, a3, a4, a5, a6, a7, a8, a9);
	r.err = errno;
	return r;
	}

	uintptr_t
	gccgoRealSyscallNoError(uintptr_t trap, uintptr_t a1, uintptr_t a2, uintptr_t a3, uintptr_t a4, uintptr_t a5, uintptr_t a6, uintptr_t a7, uintptr_t a8, uintptr_t a9)
	{
	return syscall(trap, a1, a2, a3, a4, a5, a6, a7, a8, a9);
	}